Prevent specific devices from consuming too much speed.
To cut off internet access entirely, click the checkbox in the column adjacent to that device. Summary of Use Cases vs. Alternatives Feature / Metric Selfishnet V3 Router QoS Settings Setup Complexity Very Low (Portable App) High (Requires Admin Login) Low (Installer Based) Permanence Temporary (Resets on close) Permanent (Saved to hardware) Semi-permanent Granular Controls Strict Download/Upload Caps Priority Tiers (High/Med/Low) Block / Unblock Only Resource Footprint Extremely Minimal None (Runs on Router) Important Security and Ethical Considerations Selfishnet V3
Under the hood, Selfishnet V3 does not change router settings; instead, it manipulates local network routing tables. Prevent specific devices from consuming too much speed
: Normally, local devices request network information from your router. Selfishnet uses ARP Spoofing to trick other devices into thinking your PC is the network router. Alternatives Feature / Metric Selfishnet V3 Router QoS
Many antivirus programs flag Selfishnet V3 as a "hacktool" or potentially unwanted software due to its ARP spoofing capabilities. This is a technical classification rather than a judgement of malicious intent, but it's worth understanding.
Selfishnet relies on a technique called (or ARP Poisoning).